Exemplo n.º 1
0
  /**
   * Create an SNMP V1 trap with the specified enterprise IS, agent address, generic ID, specific
   * ID, and time stamp.
   *
   * @param entId The enterprise ID for the trap.
   * @param agentAddr The agent address for the trap.
   * @param generic The generic ID for the trap.
   * @param specific The specific ID for the trap.
   * @param timeStamp The time stamp for the trap.
   * @return The newly-created trap.
   * @throws java.net.UnknownHostException if any.
   */
  public SnmpV1TrapBuilder createV1Trap(
      String entId, String agentAddr, int generic, int specific, long timeStamp)
      throws UnknownHostException {

    SnmpV1TrapBuilder trap = SnmpUtils.getV1TrapBuilder();
    trap.setEnterprise(SnmpObjId.get(entId));
    trap.setAgentAddress(InetAddressUtils.addr(agentAddr));
    trap.setGeneric(generic);
    trap.setSpecific(specific);
    trap.setTimeStamp(timeStamp);

    return trap;
  }
Exemplo n.º 2
0
  /**
   * Create an SNMP V1 trap, based on the content of the specified event, and forward the trap to
   * the specified address and port. It is assumed that the specified event represents an SNMP V1 or
   * V2 trap that was received by OpenNMS (TrapD).
   *
   * @param event The event upon which the trap content should be based
   * @param destAddr The address to which the trap should be forwarded
   * @param destPort The port to which the trap should be forwarded
   * @exception Throws SnmpTrapHelperException if the variable binding cannot be added to the trap
   *     for any reason.
   * @throws org.opennms.netmgt.scriptd.helper.SnmpTrapHelperException if any.
   */
  public void forwardV1Trap(Event event, String destAddr, int destPort)
      throws SnmpTrapHelperException {
    // the event must correspond to an SNMP trap

    Snmp snmpInfo = event.getSnmp();

    if (snmpInfo == null) {
      throw new SnmpTrapHelperException(
          "Cannot forward an event with no SNMP info: " + event.getUei());
    }

    // check the version of the original trap

    String version = snmpInfo.getVersion();

    SnmpV1TrapBuilder trap = SnmpUtils.getV1TrapBuilder();

    if ("v1".equals(version)) {

      trap.setEnterprise(SnmpObjId.get(snmpInfo.getId()));

      InetAddress agentAddress;
      agentAddress = InetAddressUtils.addr(event.getSnmphost());
      if (agentAddress == null) {
        throw new SnmpTrapHelperException("Invalid ip address.");
      }

      trap.setAgentAddress(agentAddress);

      if (snmpInfo.hasGeneric()) {
        trap.setGeneric(snmpInfo.getGeneric());
      }

      if (snmpInfo.hasSpecific()) {
        trap.setSpecific(snmpInfo.getSpecific());
      }

      trap.setTimeStamp(snmpInfo.getTimeStamp());

      // varbinds

      int i = 0;
      for (Parm parm : event.getParmCollection()) {
        try {
          Value value = parm.getValue();
          addVarBinding(
              trap, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
        } catch (SnmpTrapHelperException e) {
          throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
        } finally {
          i++;
        }
      }
    } else if ("v2".equals(version)) {

      // converting V2 trap to V1 (see RFC2576)

      trap.setEnterprise(SnmpObjId.get(snmpInfo.getId()));

      String addr = null;

      for (Parm parm : event.getParmCollection()) {
        if (SNMP_TRAP_ADDRESS_OID.equals(parm.getParmName())) {
          addr = parm.getValue().getContent();
          break;
        }
      }

      if (addr == null) {
        addr = "0.0.0.0";
      }

      InetAddress agentAddress;
      agentAddress = InetAddressUtils.addr(addr);
      if (agentAddress == null) {
        throw new SnmpTrapHelperException("Invalid ip address.");
      }

      trap.setAgentAddress(agentAddress);

      trap.setGeneric(snmpInfo.getGeneric());

      trap.setSpecific(snmpInfo.getSpecific());

      trap.setTimeStamp(snmpInfo.getTimeStamp());

      // varbinds

      int i = 0;
      for (Parm parm : event.getParmCollection()) {
        Value value = parm.getValue();

        // omit any parms with type=Counter64

        if (!(EventConstants.TYPE_SNMP_COUNTER64.equals(value.getType()))) {

          try {
            addVarBinding(
                trap, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
          } catch (SnmpTrapHelperException e) {
            throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
          }
        }

        i++;
      }

    } else {
      throw new SnmpTrapHelperException("Invalid SNMP version: " + version);
    }

    // send the trap

    sendTrap(destAddr, destPort, snmpInfo.getCommunity(), trap);
  }